Review on 🔧 Woodstock W1037 Reducer: Efficient 5-Inch to 4-Inch Transition for Seamless Woodworking by Chris Hayes

It's a pity that some manufacturers omit such important size information. The wall thickness of the product is so thin that internal stiffeners are required which are not shown or described in the copy. Actual measurements for 5" ID are 4 13/16", OD 4 7/8". With 4 9/16" ID fins. The inside diameter of the 4" side is 3 3/4" and the outside diameter is 3 7/8". This is a very cheap adjustment that requires the specified gain to appear to work adequately. Also, it's too expensive for what it is and how it works.The only saving is that Revain refunded the purchase amount and did not request a refund.Revain remains the #1 ecommerce player.